This paper presents a new MAC protocol to achieve energy efficiency and low transmission latency for the static wireless sensor networks. The proposed new protocol is called A-MAC, an Alternative MAC, which assigns modified alternative wakeup schedules to different sensor nodes to minimize the probability of transmission collision. In A-MAC, after all sensor nodes are deployed, the base station...

In recent years, many systems have been developed which aim at helping users to find pieces of information or other objects that are in accordance with their personal interests. In these systems, machine learning methods are often used to acquire the user interest profile. Frequently user interests drift with time. The ability to adapt fast to the current user's interests is an important featur...

The amount and complexity of software produced today stagger the imagination. Software development strategies have not kept pace with them. Today’s software and system’s engineers are facing an increasing number of challenges as they attempt to develop new products that are faster, having high quality and are rich in features. The trend today is defining more requirements, but developers often ...

An ESM sensor composed of either a single channel or multi channel superhetrodyne receiver followed by Digital receiver and ELINT processor to identify radar emitters in a particular frequency band of interest. In real life, such systems may encounter with a continuous stream of pulses accompanied by many imperfections, and it should work on real-time basis. In order to handle such circumstance...

the other foot, he went in search of some herb that he knew was growing in a field near the dispensary, and on which he had great faith as a remedy for snake-bite. Before lie could reach the fields to gather the medicine, lie became giddy and lost the power of co-ordination over the muscles of the lower extremities, beiran to stagger, and hence came to hospital for treatment. When seen in hospi...

Abstract This work uses ANSYS Fluent commercial software to develop a pipe liquid separator model with inside staggered arranged diamond-rectangular shaped blocks for separating. serves separating process in large diameter pipes. All computations are conducted under laminar flow 200 iterations, and the residues constantly monitored ensure accuracy. Two different block sizes two inlet velocities...